/*
 * Copyright (C) 2004 NNL Technology AB
 * Visit www.infonode.net for information about InfoNode(R) 
 * products and how to contact NNL Technology AB.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, 
 * MA 02111-1307, USA.
 */

// $Id: RoundedCornerBorder.java,v 1.9 2005/02/16 11:28:13 jesper Exp $
package net.infonode.gui.shaped.border;

import net.infonode.gui.colorprovider.ColorProvider;
import net.infonode.gui.colorprovider.FixedColorProvider;

import java.awt.*;

/**
 * @author johan
 */
public class RoundedCornerBorder extends PolygonBorder {
	private static final long serialVersionUID = 1;

	private static int[][] corner1 = { { 0, 0 }, { 0, 1, 1, 0 }, { 0, 2, 2, 0 }, { 0, 4, 1, 3, 1, 2, 2, 1, 3, 1, 4, 0 }, { 0, 5, 1, 4, 1, 3, 3, 1, 4, 1, 5, 0 } };

	private static int[][] corner2 = { { -1, 0 }, { -2, 0, -1, 1 }, { -3, 0, -1, 2 }, { -5, 0, -4, 1, -3, 1, -2, 2, -2, 3, -1, 4 },
			{ -6, 0, -5, 1, -4, 1, -2, 3, -2, 4, -1, 5 } };

	private static int[][] corner3 = { { -1, -1 }, { -1, -2, -2, -1 }, { -1, -3, -3, -1 }, { -1, -5, -2, -4, -2, -3, -3, -2, -4, -2, -5, -1 },
			{ -1, -6, -2, -5, -2, -4, -4, -2, -5, -2, -6, -1 } };

	private static int[][] corner4 = { { 0, -1 }, { 1, -1, 0, -2 }, { 2, -1, 0, -3 }, { 4, -1, 3, -2, 2, -2, 1, -3, 1, -4, 0, -5 },
			{ 5, -1, 4, -2, 3, -2, 1, -4, 1, -5, 0, -6 } };

	private Insets insets;

	public RoundedCornerBorder(ColorProvider lineColor, int cType) {
		this(lineColor, cType, true, true, true, true);
	}

	public RoundedCornerBorder(ColorProvider lineColor, int cType, boolean drawTop, boolean drawLeft, boolean drawBottom, boolean drawRight) {
		this(lineColor, FixedColorProvider.WHITE, cType, cType, cType, cType, drawTop, drawLeft, drawBottom, drawRight);
	}

	public RoundedCornerBorder(ColorProvider lineColor, ColorProvider highlightColor, int cType1, int cType2, int cType3, int cType4) {
		this(lineColor, highlightColor, cType1, cType2, cType3, cType4, true, true, true, true);
	}

	public RoundedCornerBorder(ColorProvider lineColor, ColorProvider highlightColor, int cType1, int cType2, int cType3, int cType4, boolean drawTop,
			boolean drawLeft, boolean drawBottom, boolean drawRight) {
		super(lineColor, highlightColor, createCoordinates(cType1, cType2, cType3, cType4, drawTop, drawLeft, drawBottom, drawRight), createXScales(cType1,
				cType2, cType3, cType4), createYScales(cType1, cType2, cType3, cType4));

		insets = new Insets(drawTop ? 1 : 0, drawLeft ? 1 : 0, drawBottom ? 1 : 0, drawRight ? 1 : 0);
	}

	@Override
	protected Insets getShapedBorderInsets(Component component) {
		return insets;
	}

	private static int[] createCoordinates(int cType1, int cType2, int cType3, int cType4, boolean drawTop, boolean drawLeft, boolean drawBottom,
			boolean drawRight) {
		int c1[] = corner1[cType1];
		int c2[] = corner2[cType2];
		int c3[] = corner3[cType3];
		int c4[] = corner4[cType4];

		int coords[] = new int[c1.length + c2.length + c3.length + c4.length];
		int index = 0;
        int c1Length = c1.length;
		for (int i = 0; i < c1Length; i++) {
			coords[index] = drawLeft ? c1[i] : c1[i] - 1;
			index++;
			i++;
			coords[index] = drawTop ? c1[i] : c1[i] - 1;
			index++;
		}
        int c2Length = c2.length;
		for (int i = 0; i < c2Length; i++) {
			coords[index] = drawRight ? c2[i] : c2[i] + 1;
			index++;
			i++;
			coords[index] = drawTop ? c2[i] : c2[i] - 1;
			index++;
		}

		for (int i = 0; i < c3.length; i++) {
			coords[index] = drawRight ? c3[i] : c3[i] + 1;
			index++;
			i++;
			coords[index] = drawBottom ? c3[i] : c3[i] + 1;
			index++;
		}

		for (int i = 0; i < c4.length; i++) {
			coords[index] = drawLeft ? c4[i] : c4[i] - 1;
			index++;
			i++;
			coords[index] = drawBottom ? c4[i] : c4[i] + 1;
			index++;
		}

		return coords;
	}

	private static float[] createXScales(int cType1, int cType2, int cType3, int cType4) {
		int c[][] = new int[4][1];
		c[0] = corner1[cType1];
		c[1] = corner2[cType2];
		c[2] = corner3[cType3];
		c[3] = corner4[cType4];

		float xscales[] = new float[c[0].length + c[1].length + c[2].length + c[3].length];
		int index = 0;

		for (int k = 0; k < c.length; k++) {
			for (int i = 0; i < c[k].length; i++) {
				xscales[index] = c[k][i] < 0 ? 1 : 0;
				i++;
				index += 2;
			}

		}

		return xscales;
	}

	private static float[] createYScales(int cType1, int cType2, int cType3, int cType4) {
		int c[][] = new int[4][1];
		c[0] = corner1[cType1];
		c[1] = corner2[cType2];
		c[2] = corner3[cType3];
		c[3] = corner4[cType4];

		float yscales[] = new float[c[0].length + c[1].length + c[2].length + c[3].length];
		int index = 1;

		for (int k = 0; k < c.length; k++) {
			for (int i = 1; i < c[k].length; i++) {
				yscales[index] = c[k][i] < 0 ? 1 : 0;
				i++;
				index += 2;
			}
		}

		return yscales;
	}
}
